Home › Per Ken Perlin's original 1985 paper, PERLIN NOI…
Per Ken Perlin's original 1985 paper, PERLIN NOISE produces output with which spectral character?
ABand-limited smooth output without axis bias
BWhite noise with all frequencies equal in amplitude
CPure single sine wave at exactly one frequency only
DStep function at integer grid points only (discrete)
Answer & Solution
Correct answer: A. Band-limited smooth output without axis bias
Perlin 1985 SIGGRAPH 'An Image Synthesizer': gradient noise; smooth + band-limited; isotropic on average. Used for clouds, terrain, marble.
Related questions
Per Inigo Quilez (iquilezles.org) and the demoscene tradition, SIGNED DISTANCE FUNCTIONS (In procedural generation, the SEED for an RNG is essential for which property?In an L-SYSTEM used for procedural plant / city generation, the core operation is which?In procedural cave / dungeon generation, CELLULAR AUTOMATA (e.g. 4-5 rule) typically smootIn a terrain pipeline, EROSION simulation is typically used to do which?WAVE FUNCTION COLLAPSE (Gumin 2016) generates tilemaps by applying which paradigm?In procedural dungeon generation, BSP (Binary Space Partitioning) is used to do which?For 3D terrain / volumes, SIMPLEX noise (Perlin 2001) was introduced primarily to address